UBA macro problems

[biolink22]

here is the macro im currently using
#showtooltip Unbreakable Armor
/cast Blood Tap
/stopcasting
/cast Unbreakable Armor
/stopcasting
/cancelaura Blood Tap

the problem im having is it seems to register the /cast blood tap and /cancelaura blood tap lines at the same time wasting the free death rune if i could get any help on this i would appreciate it

[Praxis]

Due to the nature of latency and whatnot, the game takes a second to realize that you have Blood Tap and allow you to cast Unbreakable Armor without an actual Frost Rune up. I tend to just place a /cancelaura Blood Tap button somewhere else to click immediately after I gain the Unbreakable Armor buff.

[Vangor]

Consider removing the second stop cast. Not sure why this would help, but mine has only the first and works well.